#include <iostream>
using namespace std;
int main()
{
	int a=10,b=20;
	auto fun=[&](int&t)mutable{
		a=30;
		b=30;
		t=100;
	};
	fun(a);
	cout << "a=" << a << endl;
	cout << "b=" << b << endl;
	return 0;
}
